baber/WOPTO huggingface dataset:
Patent KR-20020039620-A (KR)
Inventor: GOTO TAKAO
IPC: G01R33/3875
Filed: 2001-11-20
Abstract: PURPOSE: To provide a means for reducing secondary static magnetic field elements of an MRI apparatus. CONSTITUTION: Holding a center Z0 of a photographic zone of the MRI apparatus 100, the first circle line coil C1 and the second circle coil C2 are arranged in a symmetrical position toward a direction of the static magnetic field Bo. The third circle line coil C3 and the fourth circle line 4 are arranged in a similar manner. In the first circle line coil C1 and the second circle line C2, the first correction magnetic field bz1 and the second correction magnetic field bz2 in the same direction are allowed to generate, while in the third circle line coil C3 and the fourth circle line coil C4, the third correction magnetic field bz3 and the fourth correction magnetic field 4 in a mutually same direction but in a reverse direction of the first correction magnetic field bz1 are allowed to generate. The secondary element of the static magnetic field Bo are corrected by these correction magnetic fields bz1-bz4, to improve the uniformity of the static magnetic field.
Patent KR-20030044429-A (KR)
Title: Method of manufacturing hot-rolled medium carbon for zinc coating with excellent surface quality
Inventor: JIN YEONG SUL
IPC: B21B3/00
Filed: 2001-11-30
Abstract: PURPOSE: A method of manufacturing hot rolled medium carbon steel sheet for zinc coating with excellent surface quality is provided, wherein complex Si-O-Fe oxides are formed on interfacial surface between scale layer and matrix to prevent blister, thereby improve surface quality. CONSTITUTION: The method is characterized in that a steel sheet comprising C 0.1 to 0.3 wt.% is hot rolled at less than initial temperature of finish hot rolling, defined as 1050+30xln£Si(wt.%)/C(wt.%)|, wherein the content of Si in the steel sheet satisfies: 0.2x(wt.%C)+0.01<=Si<=0.2 wt.%.
Patent KR-20030044529-A (KR)
Title: Styrenic Copolymers and Process for Producing the Same
Inventor: LEE YEONG SEOP
IPC: C08F212/08
Filed: 2001-11-30
Abstract: PURPOSE: An α-olefin/styrene-based monomer/diene/syndiotactic polystyrene random copolymer and its preparation method are provided, to improve the heat resistance, the impact resistance and the compatibility by employing a plurality of metallocene catalysts, to obtain a stable physical properties due to no gelation and to allow the content of styrene, ethylene and syndiotactic polystyrene to be controlled easily. CONSTITUTION: The method comprises the steps of adding an α-olefin/styrene-based monomer/diene terpolymer metallocene catalyst(A) and a co-catalyst to an α-olefin, a styrene-based monomer and a diene compound to prepare an α-olefin/styrene-based monomer/diene terpolymer; and delivering the obtained one from a first reactor to another reactor, removing the α-olefin, and adding a syndiotactic styrene-based polymerization metallocene catalyst(B) and a co-catalyst to the reactor to polymerize the reactant continuously. Preferably the co-catalyst is an organometallic compound or a mixture of a non-coordinated Lewis acid and an alkyl aluminum.
Patent KR-20020043184-A (KR)
Inventor: KOBA FUMIHIRO
IPC: G03F1/20
Filed: 2001-11-30
Abstract: PURPOSE: To provide a mask for electron beam projection lithography which is prevented from warping by relieving stresses which are generated at the time of manufacturing the mask and irradiating the mask with an electron beam and, consequently, can improve the positional accuracy of a transfer pattern. CONSTITUTION: This mask for electron beam projection lithography is composed of a first silicon substrate 23 on which the transfer pattern 24 is formed, and support-side second silicon substrates 21 stuck to the first substrate 23. In this mask, slits 25 are formed in the portions of the first substrate 23 positioned on the support areas 21a of the second substrates 21.
Patent KR-20030047255-A (KR)
Inventor: CHOI JAE YEONG
IPC: B60T11/16
Filed: 2001-12-10
Abstract: PURPOSE: A master cylinder is provided to reduce the length of a cylinder by reducing the length of an inflow space. CONSTITUTION: Cylinder pins(81,82) is arranged in inflow spaces(32,42). The cylinder pins opens and closes a connecting passage(60) by contacting or separating from a center valve(70). The cylinder pins are interlocked with pistons(30,40). The cylinder pins are moved inside the inflow spaces according to the movement of the pistons. A supporting member(90) is fixed in a cylinder(10) in the back of the cylinder pins to support the cylinder pins when releasing a braking operation. Thereby, the whole length of a master cylinder is effectively reduced.
Patent KR-20030048790-A (KR)
Title: a method for an increase of fuel quantity control of engine
Inventor: KIM YUN SU
IPC: F02D41/14
Filed: 2001-12-13
Abstract: PURPOSE: A method for controlling the increment of fuel quantity of an engine is provided to improve fuel efficiency by inhibiting correction control at a temperature under a dead zone. CONSTITUTION: A method for controlling the increment of fuel quantity of an engine comprises the steps of outputting a fuel quantity control signal by performing fuel quantity increasing control depending on the temperature of exhaust gas and the change ratio of the temperature of the exhaust gas(S160), outputting a fuel quantity control signal by performing fuel quantity control with an air-fuel ration feedback control equation(S170), and deciding if an engine off condition is satisfied(S180).
Patent KR-20030050029-A (KR)
Title: Structure for mounting a side airbag of an automobile
Inventor: NA WON YEONG
IPC: B60R21/21
Filed: 2001-12-18
Abstract: PURPOSE: Installation structure for a side air bag in a vehicle is provided to improve the safety of a passenger against expansion of the air bag by preventing the side air bag from being expanded between the pillar trim and the side inner panel. CONSTITUTION: An installation system of a side air bag(30) is composed of a side panel(10) having a fitting groove(1) and a space part for mounting the side air bag from a head lining(20); a pillar trim(40) having the lower part fixed to the side panel, the upper part extended and contacted to the edge of the head lining, and a reinforcing rib(2) extended into the fitting groove of the side panel; and a metal hook(3) fastened in the upper part of the reinforcing rib of the pillar trim and elastically fitted to the fitting groove of the side panel to fasten the upper part of the pillar trim. The safety of the passenger is improved by restricting the side air bag from being expanded between the pillar trim and the side inner panel.
Patent KR-20030055359-A (KR)
Inventor: LEE GYE YEONG
IPC: C21C7/04
Filed: 2001-12-22
Abstract: PURPOSE: A method for producing Al-killed steel with high cleanliness by performing pressure reduction or vacuum treatment on the molten Al-killed steel after feeding a flux-cored wire comprising calcium oxide, aluminum oxide and metal magnesium into molten Al-killed steel is provided. CONSTITUTION: The method comprises a step of deoxidizing molten steel with aluminum during tapping after performing first refining in converter or electric furnace, or deoxidizing molten steel with aluminum in second refining process such as vacuum refining; a step of feeding a flux-cored wire comprising calcium oxide, aluminum oxide, metal magnesium having 3 to 10 wt.% of the sum of the calcium oxide and aluminum oxide and inner flux material in which a weight ratio of the calcium oxide to the aluminum oxide is 65 to 35 : 35 to 65 into the molten Al-killed steel; and a step of performing pressure reduction or vacuum treatment on the molten Al-killed steel after the step of feeding a flux-cored wire into the molten Al-killed steel, wherein the inner flux material comprises 32 to 63 wt.% of calcium oxide, 32 to 63 wt.% of aluminum oxide and 3 to 9 wt.% of metal aluminum.
Patent KR-20030053206-A (KR)
Inventor: HAN HUI HYEON
IPC: H01L27/04
Filed: 2001-12-22
Abstract: PURPOSE: An electrostatic discharge(ESD) protection circuit is provided to improve tolerance regarding ESD by inserting a resistor into a transistor having a weak point regarding ESD in an open drain type mixed threshold voltage input/output structure so that a threshold voltage is increased. CONSTITUTION: A pull-up driver part discharges a positive electrostatic voltage induced through an input pad part(1) to the first node, connected between the input pad part and the first node. A plurality of switching devices are connected in parallel between the first node and a supply voltage line. A resistor is additionally formed between the source terminal and the supply voltage line of a switching device having a small threshold voltage among the plurality of switching devices.
Patent KR-20030053220-A (KR)
Title: A method for forming storage node of semiconductor device
Inventor: KO JAE HONG
IPC: H01L21/205
Filed: 2001-12-22
Abstract: PURPOSE: A method for fabricating a storage node of a semiconductor device is provided to eliminate the defects found after a poly layer for an etch barrier is formed by forming an oxide layer for the storage node through a high density plasma chemical vapor deposition(HDPCVD) method having a self planarization characteristic. CONSTITUTION: The first oxide layer(101) is formed on a semiconductor substrate(100). The second oxide layer(102) is formed on the first oxide layer through an HDPCVD method. The poly layer(103) for the etch barrier necessary for a selective patterning process is formed on the second oxide layer. The storage node is formed by using the poly layer.
Patent KR-20030054267-A (KR)
Title: Method for forming the contact hole of semiconductor device
Inventor: JUNG YONG CHEOL
IPC: H01L27/108
Filed: 2001-12-24
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to be capable of reducing the resistance of a storage node contact and decreasing aspect ratio by simultaneously forming a bit line tungsten plug and a storage node tungsten plug by using a single process. CONSTITUTION: A metal line(210), the first plug poly(220), and the second plug poly(230) are formed at the upper portion of a semiconductor substrate(200), wherein the semiconductor substrate has an isolation layer(205). After depositing an interlayer dielectric(240) on the resultant structure, a photoresist pattern is formed on the interlayer dielectric. A plurality of contact holes are formed by selectively etching the interlayer dielectric using the photoresist pattern as an etching mask. After depositing a tungsten layer on the resultant structure, a storage node tungsten plug(270) and a bit line tungsten plug(275) are formed by carrying out an etch back process.
Patent KR-20030054347-A (KR)
Title: Prediction method of transformation temperature and microstructres of hot rolled plate
Inventor: JU SE DON
IPC: B21B37/00
Filed: 2001-12-24
Abstract: PURPOSE: A method for accurately predicting transformation initiation temperature of plate that is air cooled or water cooled continuously after being rolled and microscopic structure of the plate after transformation is provided. CONSTITUTION: In a method for predicting transformation initiation temperature during cooling of plate and microscopic structure of the plate after cooling, the method comprises a step of predicting transformation initiation temperature from the microscopic structure of the plate before transformation; a step of predicting volume fraction of ferrite of the plate after cooling; a step of obtaining volume fraction of each phase and average transformation temperature after obtaining transformation curve through the transformation initiation temperature, volume fraction of ferrite, and transformation speed constant; and a step of predicting grain size of ferrite using the above values.
Patent KR-20020055396-A (KR)
Inventor: IWASAKI TOMOYUKI
IPC: H04B1/44
Filed: 2001-12-27
Abstract: PURPOSE: To provide a high-frequency switching module which is primarily used in a communication apparatus and hardly affected by an adverse effect originated from the outside and a high-frequency apparatus using the same. CONSTITUTION: A high-frequency switching module is equipped with a high-frequency terminal 2 formed on the mounting surface of a laminated body 1, and the side of the laminated body 1 is made to serve as the non-electrode forming surface 35 of the high-frequency terminal 2.
Patent KR-20030057660-A (KR)
Title: Method for fabricating semiconductor device
Inventor: KWON SUN YONG
IPC: H01L21/768
Filed: 2001-12-29
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to be capable of reducing the contact resistance of a storage node contact for connecting a source/drain and a lower electrode. CONSTITUTION: An interlayer dielectric(34) is formed on a semiconductor substrate(31) having a junction layer. A contact hole is formed to expose the junction layer(33) by selectively etching the interlayer dielectric. The first ohmic contact layer(38) is partially filled into the exposed junction layer in the contact hole, and a polysilicon plug(39) and the second ohmic contact layer(40) are sequentially filled into the contact hole, thereby forming a storage node contact. A capacitor including a lower electrode(42), a dielectric film(43) and an upper electrode(44), is then formed to connect the storage node contact.
Patent KR-20030059383-A (KR)
Title: Flash memory cell structure and fabricating method thereof
Inventor: CHOI CHI HONG
IPC: H01L29/788
Filed: 2001-12-29
Abstract: PURPOSE: A flash memory cell structure and a method for manufacturing the same are provided to be capable of reducing cell size without the deterioration of erase characteristic and improving the degree of integration of a total memory region. CONSTITUTION: A flash memory cell structure includes a selective transistor and a sensing transistor. A cell trench(32) and a tunnel oxide layer used as a tunneling region are formed in a semiconductor substrate(30) at the sensing transistor region. A buried doping region(34) operated as a control gate, is formed in the semiconductor substrate for being overlaid with a floating gate of the sensing transistor, the cell trench, and the tunneling region. Preferably, the floating gate and the buried doping region are overlaid with each other through five surfaces at the cell trench formed region.
Patent KR-20010071768-A (KR)
IPC: G01N1/36
Filed: 1999-07-07
Abstract: The invention is an apparatus and method for separating particulate matter from a fluid, wherein the apparatus includes a collection container, a porous arrangement positioned in a housing and suitable for collecting particulate matter in the liquid on a collection site, a pump, and a mixer having a rotating receptacle adapted to receive the specimen container. The apparatus includes a cover that has a portion that is fixed in a first position and freely rotatable in a second position.
Patent KR-20010072508-A (KR)
Title: 무선 수신 장치와, 그를 구비한 통신 단말 장치 및 확산 부호 동정 방법
IPC: H04J13/00
Filed: 2000-06-08
Abstract: 그룹 분할 설정부(206)가, 확산 부호 발생부(207)를 제어하여 복수의 롱 코드를 순차적으로 가산기(208)에 입력시킴으로써 복수의 롱 코드를 그룹 분할하고, 가산기(208)가 입력된 복수의 롱 코드를 그룹마다 칩 단위로 가산하고, 상관부(204)가 가산된 롱 코드와 수신 신호와의 상관값을 산출하여, 최대 상관값 검출부(205)에 의해서 최대 상관값을 나타내는 그룹이 선택되어, 이 선택된 그룹에 속하는 롱 코드가 그룹 분할 설정부(206)에 의해서 다시 복수의 그룹으로 분할되며, 이것을 그룹내의 롱 코드가 하나로 될 때까지 반복함으로써 롱 코드를 동정한다.
Patent KR-20010085400-A (KR)
IPC: H01L21/363
Filed: 1999-09-09
Abstract: 전류주입에 의해 발광하는 활성층(5)이, 그 활성층(5) 보다 밴드갭이 큰 재료로 이루어지는 n형 클래드층(4) 및 p형 클래드층(6)에 의해 끼워 지지되는 구조로서, 활성층(5)이 예를 들면, Cd x Zn 1-x O(0≤x＜1)로 이루어져 있다. 또, 클래드층(4, 6)이, 예를 들면, Mg y Zn 1-y O(0≤y＜1)로 이루어져 있으면 더욱 바람직하다. 이에 의해, ZnO재료의 협대역 겝화를 도모하게 되며, 활성층을 클래드층에 의해 끼워 지지하는 청색계의 발광다이오드나 레이저다이오드 등의 반도체발광소자의 활성층이나 클래드층의 재료에, 습성에칭이 가능하며, 취급하기 용이하고, 결정성이 우수한 산화물반도체를 사용할 수가 있게 되어, 발광특성이 우수한 청색계의 반도체발광소자를 얻을 수가 있다.
Patent KR-20010081070-A (KR)
Title: 인장력 조절장치를 구비한 이중 플레이트 권취 기구
IPC: B41F27/12
Filed: 2000-10-05
Abstract: 플레이트 재료 인장 및 전진 기구는 플레이트 재료를 개별적인 인쇄가능 부분으로 분리시키도록, 인쇄 프레스의 플레이트 실린더와 같은 실린더(104)에 대하여 평행하게 배열된다.  플레이트 재료 인장 및 전진 기구(102)는 인쇄 작업 중에 인장 롤(114)을 통하여 플레이트 재료(112)에 인장력을 공급하는 것을 돕고, 전진 작업 중에 플레이트 재료 상에 인장력을 감소시키고 선택적으로 권취 롤을 통하여 플레이트 재료에 접선력을 가함으로써 새로운 플레이트 재료를 실린더에 대하여 권취하는 것을 돕는다.
Patent KR-20010102326-A (KR)
IPC: H01J29/86
Filed: 2000-12-13
Abstract: 본 발명은, 미리 계산된 길이의 필름(7)을 표면(5)에 고정시키는 방법과 장치에 관한 것이다. 필름(7)은 필름(7) 길이 이상의 원주를 갖는 롤러(3)에 감긴다. 다음으로, 롤러(3)는 표면(5)에 대해 회전하고, 이에 의해 필름(7)은 롤러(3)로부터 표면(5)으로 이동된다.
Patent KR-20010102479-A (KR)
Title: 자기 테이프 카트리지
IPC: G11B23/28
Filed: 2000-02-10
Abstract: 자기 테이프로의 자기 기록을 금지하기 위한 기록 금지 부재의 자기 기록가능 위치와 자기 기록불가 위치 사이에서의 안정된 슬라이딩 조작성과 장착성을 확보하는 자기 테이프 카트리지(1)로서, 자기 테이프(6)를 감은 단일의 릴(7)을 회전가능하게 수용하는 상하 케이스(2, 3)로 이루어진 카트리지 케이스(4)를 구비하고, 기록 금지 부재(13)는 슬라이딩 본체(30)의 외면에 케이스(4)의 한 측면으로 개구하는 조작창(21)에 면하는 조작부(32)를 갖는 동시에, 저부에는 하측 케이스(3)의 저벽(3a)에 개구하는 저부 창부(25) 내를 이동하는 돌기(38)를 구비하고, 슬라이딩 본체(30)의 내면에 슬라이딩 방향(D)과 대략 직교되는 방향으로 돌출하여 설치한 걸어 멈춤 편(34)이, 카트리지 케이스(4)에 슬라이딩 방향(D)으로 뻗어나게 설치한 탄성 변형가능한 가이드 벽(22)에 형성된 걸어 멈춤 홈(23, 24)에 걸리어 정지 위치를 유지한다.
Patent KR-20010103792-A (KR)
Title: 기판 실장 커넥터
IPC: H01R4/48
Filed: 2000-03-02
Abstract: 본 발명은 기판에 장착될 수 있는 전기커넥터(10,110)에 관한 것으로 일렬로 복수개의 콘택(30,120)을 지지하는 하우징(20,120)으로 구성되어 있다.  각 콘택은 하우징에 결합된 지지부(31,131), 기판과의 연결을 위한 지지부의 일단에 배치되어 있는 연결부(33,133), 그리고 메이팅 바디와 전기적 접촉을 위하여 지지부의 반대측 단부에 배치된 접촉부(32,132)를 포함한다. 
     접촉부는 지지부로부터 확장되며, 먼저 상기 지지부(31)로부터 아래쪽으로 연장되는 돌출부(51), 상기 아래쪽을 향한 돌출부(51)로부터 정점을 향해 위로 연장된 다음 상기 접촉부(32)의 전방 단부에 있는 만곡부를 향해 아래로 뻗는 돌출 형상, 그리고 만곡부로부터 메이팅 바디와의 전기적 접촉을 위한 한쌍의 접촉부(54)로 상방 그리고 후방으로 연장되는 아암부를 포함하는 연속 부분을 갖는다.  그리고 상기 접촉부(54)는 돌출형상의 정점(56a)의 후방으로 배치된다.
Patent KR-20020015685-A (KR)
Title: Cross-linked acrylic microparticles, method for the production thereof and use thereof in coverings and moulding products
IPC: C09D163/00
Filed: 2000-03-24
Abstract: The invention relates to cross-linked acrylic microparticles, a method for the production thereof by polymerization in a dispersion in a non aqueous medium and to the uses thereof in covering or moulding compositions involving a favourable compromise between hardness, flexibility and adhesion. The micropparticles are obtained from a composition comprising: 50-99% mols of a constitutent (A) consisting of Cardura E 10 (meth)acrylate and optionally alkyl (meth)acrylate in C2-C8; a compound (B) consisting of at least one monomer or oligomer having at least 2 ethylenic unsaturations; a compound (C) consisting of at least one monomer or oligomer having in addition to one ethylenic unsaturation at least one second function (F1) with the possibility of at least partial chemical modification of the initial functions f1 into final functions f2.
Patent KR-20020005702-A (KR)
IPC: G02F1/1335
Filed: 1999-07-29
Abstract: 반사형 편광자를 사용하는 광학 장치, 특히 확산 반사형 편광자가 제공된다.  많은 광학 장치는 이들의 광학 특성을 향상시키기 위해 확산 반사형 편광자의 확산반사 및 광학 투과 특성을 이용한다.  광학 장치는 광학 리플렉터에 부착된 확산 반사형 편광자로부터 형성되는 리플렉터를 사용하는 조명 시스템을 포함한다.  또 다른 광학 장치는 광 변조층을 향해 샐로 앵글(shallow angle)의 광을 배가시키는 회전 렌즈와 조합되어 있는 확산 반사 편광자층을 사용하는 디스플레이 장치이다.  다른 광학 장치는 광을 반사할 때 확산 반사형 편광자의 편광 소멸 특성을 이용한다.  또 다른 광학 장치는 광을 리사이클시키고 디스플레이의 조명을 향상시키기 위해 확산 반사형 편광자를 사용한다.
Patent KR-20020026164-A (KR)
Title: Device for activating an opening mechanism and/or a closing mechanism for lockable moving parts on vehicles, such as flaps, doors or similar
IPC: E05B65/19
Filed: 2000-05-04
Abstract: The device has a manual actuator that acts on at least one switch contact maker (13) when actuated and a drive for the movable part (10) that is switched by the switch (12). The movable part is mounted on the vehicle body (40) that has a rigid, incompressible wall thickness with a free part (10) of such dimensions that it bulges under pressure to activate the switch.
Patent KR-20020016850-A (KR)
IPC: A61P1/12
Filed: 2000-06-28
Abstract: 암화학요법제, 특히 토포 이소메라아제 I 저해제인 항암성 캄프토테신 유도체를 암환자에게 투여하므로서 부작용으로 생기는 설사장해를 경감시킬 수 있는 설사의 예방 및 치료제로서 유용한 것으로, β-글루쿠로니다아제 저해활성을 갖는 시아스타틴 B 또는 시아스타틴 B 유도체를 유효성분으로 하는 설사의 예방 또는 치료용 의약조성물을 제공한다. 이 조성물은 항암성 캄프토테신 유도체의 투여에 따른 설사를 예방 또는 치료하는데 유효하다.
Patent KR-20020021150-A (KR)
Title: Testing apparatus for substrate of electronic device
Inventor: KIYOKAWA TOSHIYUKI
IPC: H05K13/08
Filed: 2002-01-18
Abstract: PURPOSE: A test device of an electronic component board is provided to improve the throughout of test, enable tests to be carried out at an accurate temperature and realize a miniaturization, simplification and cost reduction of a test device. CONSTITUTION: A test device of an electronic component board includes a hangar part(200) for storing a tested memory module and a test part(102) of a chamber(100) for testing each memory module with mounting on a test tray(20). The test tray(20) includes an insert in which a holding trench is formed into which both side end portions of a memory module are movable inserted in such a manner that a board terminals of the memory module are exposed, and a tray main body which holds the insert in such a manner that the board terminals of the memory module are exposed.
Patent KR-20030062705-A (KR)
Title: A method for manufacturing a pulp fabric and, a shroud and a body inshrining sheet from the same
Inventor: LEE YANG SOON
IPC: D03D15/00
Filed: 2002-01-18
Abstract: PURPOSE: A manufacturing method of pulp fabric having excellent antibacterial property is characterized by coating a surface with antibacterial additives. And a shroud and a corpse laying material manufactured out of the fabric are characterized by having excellent absorptiveness and being inexpensive. CONSTITUTION: The pulp fabric is obtained by the steps of: cutting a pulp roll(10) on proper width in a length direction, followed by providing a cut pulp(20); twisting the cut pulp(20) to prepare pulp yarn(30); weaving the pulp fabric(1) out of the pulp yarn(30); mixing kaolin and yellow soil with paste in a weight ratio of 60-90 : 10-40 to manufacture the additives; and then coating the surface of the fabric(1) with the additives. The corpse laying material is comprised of: the pulp fabric(1); and an outer paper and an inner paper adhered on the top and bottom of the fabric(1). The outer paper and the inner paper are made out of rayon and Korean paper.
Patent KR-20030063661-A (KR)
Title: Semiconductor wet station equipment
Inventor: KIM SANG BIN
IPC: H01L21/304
Filed: 2002-01-23
Abstract: PURPOSE: A semiconductor wet station apparatus is provided to eliminate a cause of particles by maintaining chemicals on a water bedplate installed between baths in a cleaning process. CONSTITUTION: A chemical solution and a cleaning solution are stored in a plurality of baths(20,22). The water bedplate(24) exhausts the chemical solution dropping from a wafer to the water bedplate by gravity when the wafer is transferred from one bath to another, installed between the plurality of baths. A plurality of exhaust pipes(26,28) exhaust the chemical, respectively installed at both sides of the water bedplate. The chemical exhausted from each exhaust pipe is contained in a sink(30,32).
Patent KR-20030066208-A (KR)
Title: Check valve for scroll type compressor
Inventor: PARK HYEONG JIN
IPC: F04C18/02
Filed: 2002-02-05
Abstract: PURPOSE: A check valve of a scroll compressor for an air conditioner is provided to reduce closedown time by reducing pressure loss caused by drag and to repress shutdown noise generated by a partial side wear. CONSTITUTION: A check valve of a scroll compressor for an air conditioner comprises a valve body(51) of which an edge is fixed to a fixed scroll(60) by a bolt, and the valve body having a fluid passage(51") passing fluid in the middle and a hole(5l') being smaller than the fluid passage at the upper center, and a spherical valve unit(52) inserted into the fluid passage of the valve body and the valve unit blocking up a discharge hole(60') of the fixing scroll with moving up and down inside the fluid passage according to the pressure of fluid. The valve unit is formed in a conical shape and an apex thereof faces the discharge hole of the fixing scroll.